AA 4067 then ET 3511 at O'Hare
Green Bay → Chicago → Muscat
Timetable, Chicago time
11:25AA 4067 from Green Bay at the gate
09:05ET 3511 to Muscat leaves the gate
21 h 40 apart on the timetable, overnight
ET 3511 leaves 21 h 40 after AA 4067 arrives on the timetable: more than half a day, so not a connection we count.